Hi
When measuring maximum earth fault loop impendance Zs on a light circuit, do you measure on a 3 plate pendant between loop and earth or live and earth
Thanks for you assistance.
Can anyone please tell me if the drilling zone through an I Joist is the same as the zone through a standard timber joist ie: 0.25 - 0.40, as I Joist have knock out holes all throughout its length.
Thanks for your assistance.